Javascript - simple submit button issue

Hello guys,

I have this javascript code:
$("#submit").click(function() { 
        //get input field values 
        var newsletter_email      = $('input[name=newsletter_email]').val();
        //simple validation at client's end
        //we simply change border color to red if empty field using .css()
        var validation = true;
            validation = false;
        //everything looks good! proceed...
            //data to be sent to server
            post_data = {'userEmail':newsletter_email};
            //Ajax post data to server
            $.post('ajaxcontact2.php', post_data, function(response){  

                //load json data from server and output message     
                if(response.type == 'error')
                    output = '<div class="error">'+response.text+'</div>';
                    output = '<div class="success">'+response.text+'</div>';
                    //reset values in all input fields
                    $('#potvrdit input[type=newsletter-email]').val(''); 
            }, 'json');

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When I click on submit button and left the email field empty, it doesn't set the border-color: red as it should. Instead it reaload the page with this URL -

So it doesn't even get to the PHP file, but I guess I have to have something wrong in the javascript. Please help.

NOTE: It's already in the document ready function.
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Chris StanyonWebDevCommented:
You need to prevent the form from submitting the normal way so that it only submits via AJAX. Change your opening code to this:

$("#submit").click(function(e) {

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Fajer39Author Commented:
Thank you.
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